Date: 19/01/2010

New Holtek 1.5V single cell battery operated microcontrollers

Holtek's new 1.5V low voltage microcontroller series includes four new devices, the I/O type HT48R01M and HT48R02M as well as the A/D type HT46R01M and HT46R02M. All devices in the series include an internal DC-DC converter, which can accept input voltages down to 0.7V, but still maintain a fixed output voltage of 3.0V. This allows the devices to be powered by a single cell battery, as well as providing a 3V power source for external application components.

The devices have an OTP type memory capacity of either 1Kx15 or 2Kx15, 96 bytes of SRAM Data Memory, 10 I/O pins, an internal Time Base and two 8-bit Timers. The A/D type devices include a 12-bit internal high speed ADC and an 8-bit PWM output. Four types of system oscillators are provided, a high frequency crystal type, low frequency crystal (32KHz) type, external RC oscillator and internal RC oscillator. This latter internal RC oscillator requires no external components and can be chosen to have one of three different frequencies, 4MHz, 8MHz or 12MHz, each with a tolerance of ±2%.

This new 1.5V Battery MCU device series are available in 16-pin NSOP package types.

For details visit: www.holtek.com